dugongs

Female dugongs have one calf after a yearlong pregnancy, and the mother helps her young reach the surface and take its first breath.
雌性儒艮怀孕一年后才会产出一个小儒艮，然后由母亲儒艮帮助没有经验的小儒艮穿出水面作第一次呼吸。
Dugongs spend much of their time alone or in pairs, though they are sometimes seen gathered in large herds of a hundred animals.
儒艮有很多时间是单独生活或成对生活的，尽管有时我们也会看到它们成百地聚集为巨大的动物兽群。
Dugongs are now legally protected throughout their range, but their populations are still in a tenuous state.
儒艮目前在整个范围内受到法律的保护，但其数量仍然处于贫乏的状态中。
Some believe that dugongs were the inspiration for ancient seafaring tales of mermaids and sirens.
有些人认为，儒艮是为古代美人鱼和塞任（siren）【1】航海故事的启示。
Herds of dugongs or sea cows -- some of which can reach three metres long -- ply the coastal waters, grazing on sea-grass.
嚼着海草的儒艮（又叫海牛）群在海边的水里层层叠叠，它们有的可达三米长。
Dugongs are now protected, but their population status remains precarious.
如今，儒艮已经被保护起来，但是它们的数目情况还是危险。
Possibly the inspiration for mariners' tales of mermaids, dugongs are closely related to elephants.
它可能是水手的美人鱼故事的启示，儒艮与大象是密切相关的。
Many are large animals, such as rhinos, tapirs, elephants, dugongs and manatees.
它们中的许多都是大型哺乳动物，比如犀牛、貘、大象、儒艮和海牛。